When energy changes from one form to another, some energy is always changed to A. added as heat B. returned to its source C. given off as heat D. gained

Which groups of plants were probably most active in secondary succession and re-establishing the native habitat?

Childbirth in mammals is an example of endocrine-controlled negative feedback, because the production of oxytocin during childbirth results in additional oxytocin being synthesized by the posterior pituitary gland. A. True B. False

What would the season be during a total lunar eclipse in December

A well tested explanation for a wide range of observation or experimental results is called a scientific

Carbohydrates and fats both ... ? A. can be used as an energy source by organisms B. can be bonded together to construct DNA molecules C. are made up of the glucose monomer D. are monomers that can be made into large polymer chains

Scientists think that chimpanzees and gorillas share a common ancestor. Today, it is not possible for a chimpanzee and gorilla to mate and produce fertile offspring. What is this an example of? A. succession B. natural selection C.

The sense organs associated with equilibrium are within the

Which of the following is fact based science rather than a part of a personal belief system

If a mother carries a recessive allele for a genetic disorder such as cystic fibrosis under what circumstances will her children inherit the disorder

Explain how compaction is important in the formation of coal